LTC4055EUF-1#PBF

Product Overview

Category

The LTC4055EUF-1#PBF belongs to the category of battery charger ICs.

Use

It is primarily used for charging single-cell lithium-ion/polymer batteries.

Characteristics

• The LTC4055EUF-1#PBF is a highly integrated solution for battery charging applications.
• It offers a compact and efficient charging solution for portable devices.
• The device provides a constant-current/constant-voltage charge algorithm, ensuring optimal charging performance.
• It supports a wide input voltage range, making it suitable for various power sources.
• The LTC4055EUF-1#PBF includes built-in safety features such as thermal shutdown and reverse battery protection.

Package

The LTC4055EUF-1#PBF comes in a small 4mm x 3mm DFN package.

Essence

The essence of the LTC4055EUF-1#PBF lies in its ability to provide a reliable and efficient charging solution for single-cell lithium-ion/polymer batteries.

Packaging/Quantity

The LTC4055EUF-1#PBF is typically available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4.35V to 6V
• Charge Current Range: Up to 1A
• Charge Termination: Programmable
• Preconditioning: Yes
• Battery Temperature Monitoring: Yes
• Operating Temperature Range: -40°C to 85°C
• Package Type: 4mm x 3mm DFN

Detailed Pin Configuration

The LTC4055EUF-1#PBF has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. PROG (Charge Current Programming)
4. STAT (Status Indicator)
5. CE (Charge Enable)
6. BAT (Battery Connection)

Functional Features

• Constant-Current/Constant-Voltage Charging Algorithm
• Programmable Charge Termination
• Preconditioning for Deeply Discharged Batteries
• Thermal Shutdown Protection
• Reverse Battery Protection
• Status Indicator for Charge Progress Monitoring

Advantages and Disadvantages

Advantages

• Highly integrated solution for battery charging applications
• Compact and efficient design
• Wide input voltage range for versatile power sources
• Built-in safety features for reliable operation

Disadvantages

• Limited to single-cell lithium-ion/polymer batteries
• Not suitable for multi-cell battery charging applications

Working Principles

The LTC4055EUF-1#PBF utilizes a constant-current/constant-voltage charging algorithm to ensure optimal charging performance. It starts with a constant current phase until the battery voltage reaches a predetermined threshold. Then, it switches to a constant voltage mode to complete the charging process. The device also includes safety features such as thermal shutdown and reverse battery protection to prevent damage to the battery or the charger itself.

Detailed Application Field Plans

The LTC4055EUF-1#PBF is commonly used in various portable electronic devices, including:

• Smartphones
• Tablets
• Portable media players
• Bluetooth headsets
• Wearable devices
• GPS navigation systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LTC4055EUF-1#PBF are:

1. MCP73831
2. MAX1555
3. BQ24075

These models provide comparable charging capabilities and are widely used in battery charging applications.

In conclusion, the LTC4055EUF-1#PBF is a highly integrated battery charger IC designed for single-cell lithium-ion/polymer batteries. It offers a compact and efficient charging solution with built-in safety features. The device's constant-current/constant-voltage charging algorithm ensures optimal performance. It is commonly used in various portable electronic devices and has alternative models available in the market.